TY  - BOOK
AU  - Griggs, Gary B..
TI  - Gelogic hazards,resources,and environmental planning / 
SN  - 0-534-01226-4
U1  - H:(D) 
PY  - 1982///
CY  - California : 
PB  - Wadsworth publishing Company , 
KW  - Earth Science
ER  -